The similarity of elements in multi-principle element alloys based on a new criterion for phase constitution

Prediction of the phase constitution of the multi-principle elements alloys (MPEAs) with various element numbers is important for alloy design and performance optimization. Herein, valence electron density parameter, α, is proposed as an improvement of the valence electron concentration by including the impact of atom volumes. The phase constitution of numerous MPEAs is well predicted by the priori α-ΔHmix(enthalpy of mixing) criterion,...